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Top-Rated Home security system pros in Unionville - Updated Nov 2026

Avatar for ADT
ADT
4.5(
890
)
Fire - Protection and PreventionSurveillance Cameras - Install or RepairAlarm or Security System - Install+10 more

Serving Unionville, MD and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1874

Free estimates

Emergency services offered

"ADT has exceeded my expectations! The system is reliable, the app is easy to use, and the customer service team is always helpful. I appreciate the environmental monitoring features, which go beyond just security. Knowing my home is protected 24/7 is priceless. I highly recommend ADT to anyone looking for a trustworthy security provider."
Home Security Essentials
Smart Home Security
Cameras
Our Team
Home Security Essentials

+35

35 neighbors recently requested a quote
Recommended by88%of homeowners
Modern Systems Integration, LLC
4.0(
82
)
Surveillance Cameras - Install or RepairSurveillance Cameras - Install or Repair - For Business

Serving Unionville, MD and surrounding areas

Approved

In business since 2012

Free estimates

Warranties offered

"My wife and I needed to have security cameras installed within our town home, in order to monitor our new born daughter and her baby sitter. We had some reservations about hiring this company because most of their previous jobs were for office buildings or out doors. After speaking with the sales person (Nigel) and customer service representative (Renee) as well as a few of their previous satisfied customers, we decided to hire MSI to install one out door camera and two in door cameras. The work that was done by the technician Steve was down right perfect. MSI was very accommodating and understanding with our schedules as Steve needed to come out twice due to an issue that needed to be resolved with our HOA. Upon completion the technician answered our questions very clearly and even stayed around to make sure that every thing worked as we wanted all throughout the process. I would definitely recommend this company and we are considering hiring them again to add additional cameras to our system in the future."
Response time1 day
13 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Next Level Tecnologies Group, LLC
Next Level Tecnologies Group, LLC
4.8(
38
)
Building Automation System - Install or Service - For BusinessSurveillance Cameras - Install or RepairSurveillance Cameras - Install or Repair - For Business

Serving Unionville, MD and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"I needed two outdoor Nest IQ cameras installed and an outdoor waterproof electrical outlet installed for my house for my autonomous lawnmower. An inspection was performed to confirm the job, and then the job was scheduled a few days later. The two man team showed up on time, was very professional/friendly and explained their work when they were finished. I couldn't be pleased by the craftsmanship and courtesy that was performed. I look forward to using their services again in the future."
Game Day!
Comfort in Style!
Conference Room Configurations
Secure Your Sanctuary
Decorative Cabinet for TV

+25

Response time1 day
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Protect Your Home
Protect Your Home
2.6(
6
)
Alarm or Security System - InstallAlarm or Security System - Monitor

Serving Unionville, MD and surrounding areas

Approved (Corporate)

In business since 1998

Free estimates

Credit card accepted

Protect Your Home is a leader in the home security industry, providing safety and peace of mind to more than 1.5 million families nationwide. Since we emerged in 1998, we've grown from a company of few to having over 2,000 high performance team members, three locations in Indianapolis, a sales center in Kentucky, and over 128 field branches across the country—and we're still growing. \n \nFor nearly 20 years, Protect Your Home has partnered with ADT®, the #1 name in home security. Today, with our national reach, we are one of ADT's biggest partners and the only partner to be designated as an Authorized Premier Provider. \n \nOur commitment to serving others combined with our projects, events, and culture contribute to the development of our team professionally, personally, and financially. \n \nIt's our mission. It's who we are. It's our legacy. \n

SA and Homeowner
Recommended by100%of homeowners
Avatar for JS Castle Contracting
JS Castle Contracting
5.0(
16
)
Security or Storm Shutters - Repair

Serving Unionville, MD and surrounding areas

Approved

In business since 2005

Free estimates

Customers say: Quick response

"As my family was in dire straits from loss of sleep, with a hard wired smoke detector system going off in our home every 5 minutes the Saturday before Easter Sunday, no calls to electric companies were returned, until we received a call from J. S Castle Contracting! We were blessed that he showed up within 4 hours, and replaced our 7 hard wired smoke detector system, which totally fixed the issue. He was very professional, knowledgeable, and confident, and performs with the highest quality of standards. I would recommend this company to anyone needing high quality home improvements."
Response time2 hrs
Recommended by93%of homeowners
Avatar for ALC Construction, LLC
ALC Construction, LLC
5.0(
9
)
Security Bars - Install or Repair - For Business

Serving Unionville, MD and surrounding areas

Approved

In business since 1999

Free estimates

Emergency services offered

ALC Construction, LLC., is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business. \n

Painting bedroom
Building butcher block countertop for a office des
Butcher block desk
Newly built hand railing and supports
Newly built custom fence

+39

Response time1 day
Response rate86%
Recommended by77%of homeowners
Avatar for District-AV, LLC
District-AV, LLC
5.0(
2
)
Building Automation System - Install or Service - For Business

Serving Unionville, MD and surrounding areas

Approved

In business since 2022

Free estimates

Small jobs welcome

At District-AV, we design custom audio-visual solutions that seamlessly integrate technology with functionality. We focus on understanding each client’s unique needs to create systems that work effortlessly for them. From smart homes to outdoor entertainment, our expertly tailored designs enhance how our clients live, work, and enjoy their spaces.

Response time2 days
Moh Hajizada
New to Angi
Surveillance Cameras - Install or Repair

Serving Unionville, MD and surrounding areas

Approved

Emergency services offered

Small jobs welcome

Hi, my name is Moh. I’m a reliable and hardworking handyman who takes pride in helping people keep their homes in great shape. I handle a variety of home repair and improvement jobs including furniture assembly, minor repairs, mounting TVs, painting, and general maintenance. I focus on doing quality work, showing up on time, and making sure customers are happy with the results. I look forward to helping you with your next project!

Grab bar installation
26 neighbors recently requested a quote
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